Answer:
Good for you
Step-by-step explanation:
Answer: 3(x minus 5.50) = 111.75; the monthly Internet service is $42.75
Step-by-step explanation:
Given the following :
Total amount spent on internet for 3 months = $111.75
Monthly credit received on bill = $5.50
Monthly Credit of $5.50 means $5.50 is deducted from the amount being paid on thir bill monthly.
Assume their monthly internet service fee = x
The amount paid before the credit deduction each month:
Amount paid - credit
(x - $5.50)
For 3 months :
3 × (x - $5.50) = $117.75
3(x - $5.50) = $117.75
Monthly fee paid before credit deduction:
3(x - $5.50) = $117.75
3x - $16.50 = $117.75
3x = $117.75 + $16.50
3x = $128.25
x = $128.25 / 3
x = $42.75
Answer:
Yo hope you do not get in trouble for plagiarism
Step-by-step explanation:
Answer:
- 5x² + 3x + 27
Step-by-step explanation:
To find the polynomial subtract 5x² - 3x - 9 from 18, that is
18 - (5x² - 3x - 9) ← distribute parenthesis by - 1
= 18 - 5x² + 3x + 9
= - 5x² + 3x + 27 ← required polynomial
Answer:
Option B). x = -9, -2 and 8.
Step-by-step explanation:
The given function is f(x) = x³ + 3x² -70x - 144 and f(-9) = 0, f(-2) = 0, f(8) = 0
We have to find the solutions to the equation x³+ 3x² = 70x + 144
Now we rewrite the function in the equation form as
x³ + 3x² - 70x - 144 = 0
x³ + 3x² = 70x + 144
we know for the values of x = -9, -2, and 8 value of the function is 0. So when we rewrite the function in the form of an equation, -9, -2 and 8 will be the zero factors of the equation.
So solutions of the equation are x = -9, -2 and x = 8.